90
The voltage supplied to "IN" connector of the Q5B or QA1S5B in the final extension base reaches 4.75 VDC or
higher on the condition that the sum total of voltage drop to "IN" connector of Q5B or QA1S5B (V) is 0.15V or
lower.
Q5B,
QA1S5B
Installation
position
Voltage drop at extension cable on corresponding extension unit Sum total of
voltage drops to
"IN" connector
of Q5B or
QA1S5B (V)
V1 V2 V3 V4 V5 V6 V7
Extension 1 R1•I1 ---- ---- ---- ---- ---- ---- V=V1
Extension 2 R1 (I1+I2) R2•I2 ---- ---- ---- ---- ---- V= V1+V2
Extension 3 R1 (I1+I2+I3) R2 (I2+I3) R3•I3 ---- ---- ---- ---- V=V1+V2+V3
Extension 4 R1 (I1+I2+I3+I4) R2 (I2+I3+I4) R3 (I3+I4) R4•I4 ---- ---- ---- V=V1+V2+V3+V4
Extension 5 R1 (I1+I2+I3+I4+I5) R2 (I2+I3+I4+I5) R3 (I3+I4+I5) R4 (I4+I5) R5•I5 ---- ----
V=V1+V2+V3+V4+
V5
Extension 6
R1
(I1+I2+I3+I4+I5+I6)
R2
(I2+I3+I4+I5+I6)
R3
(I3+I4+I5+I6)
R4 (I4+I5+I6) R5 (I5+I6) R6•I6 ----
V=V1+V2+V3+V4+
V5+V6
Extension 7
R1
(I1+I2+I3+I4+I5+I6+I7)
R2
(I2+I3+I4+I5+I6+I7)
R3
(I3+I4+I5+I6+I7)
R4
(I4+I5+I6+I7)
R5 (I5+I6+I7) R6 (I6+I7) R7•I7
V=V1+V2+V3+V4+
V5+V6+V7